Electronic structure of CeRh2Sn4

We performed a study of the compound CeRh2Sn4, not investigated so far. Our samples were carefully characterized by X-ray powder diffraction analysis and by locally resolved, energy dispersive X-ray spectroscopy (EDXS). We present a combined experimental and theoretical study based on X-ray photoelectran spectroscopy (XPS) data together with ab initio band structure calculations. The Ce 3d XPS spectrum indicates a small mixed valence of Ce. Analysis of the 3d(9)4f(2) weight using the Gunnarsson-Schonhanuner theory suggests a hybridization between Ce 4f states and the conduction band of about 85 meV. The valence band spectrum, dominated by Rh 4d states, is in a very good agreement with the calculated one.